Continuity mistake: When the three of them are about to leave jail and Ian reads the message on his iPhone, the time says "August 14, 2008 10:02 PM". Later on, when Ian is in the car waiting for Ms_Tasty, the time says "12:02 Saturday, August 14". The date should be 15 August as it is after midnight (you can tell that this is late night/early morning as it is dark out and the time earlier was PM).

Continuity mistake: When Lance and Seth Green are riding in the buggy, they are talking for a few minutes. During this time the side shot will show Lance with his arm all the way around Seth's back/shoulder. However, when the camera changed to a full shot, Lance's arms were at his side, nowhere near Seth's back or shoulder. This happened several times during this scene.

Factual error: When we see the impression from the radiator cap that shot into Ian's forehead, it says 'HOT'. Since the word 'HOT' was written correctly on the radiator cap, the word on his forehead should be backwards and read 'TOH', not 'HOT'.

Visible crew/equipment: When the GTO is driving to Knoxville, there are a few shots of the GTO passing other cars. When we see the black convertible with 2 girls in it, look in the black paintwork and you can see the camera boom clear as day.

Continuity mistake: When Lance and Ian are in jail, Lance is sitting next to a large man who is slouched forward. While Lance is mid-sentence, the shot changes and the man is sitting up much straighter.

Continuity mistake: When Rex slams on his brakes after Ian tells him that he met a girl online, the background outside the driver side window is a building with trees around it. The shot then switches to the passenger side. When the shot goes back to the driver's side, the background outside of the window is just trees and other shrubbery, even though the car is still at a standstill.

Continuity mistake: Just before Ian hits the possum with the GTO, Felicia's bottle changes hands instantly.

Factual error: There are several mistakes relating to the Youtube video from the abstinence talk. Firstly, the user joined two minutes ago, and has 11 videos already. Secondly, his one video has over 5.2 million views, in less than two minutes.

Audio problem: In the cornfield, after Rick has run Lance over in his truck, Rick gets out and walks towards Lance saying, "Get on your feet, you....!" Although the shot is shown upside-down it is quite plain that his lips are not moving.

Factual error: When Ian has the gun while he's in the doughnut suit, he manages to fire it. But the fingers are so big, there is no way it could possibly fit into the trigger guard to be able to pull the trigger.